it was the tall purple/lilac exterior one the fancier one.:) I tried that and it didn't work but I made a new save and tested the other buildings and didn't get it anywhere but the purple/lilac exterior one to happen.
Ok no worries! Thanks so much for trying the others too :D I've got it down on my bugs list so I will have a poke around this week and make sure it's in the next patch!
